Apple Trees

Essay by zomgliekwtfJunior High, 8th gradeB+, August 2009

download word file, 3 pages 5.0

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The Life Cycle of Apple Trees:Apple trees rest in winter. On the branches are buds, some of which contain leaves and others that contain five flowers. During spring, the leaf buds unfold and flower buds begin to grow on the ends of the twigs.

Honeybees are attracted to the apple flowers by nectar and the scent of the petals. As the bee collects nectar, it also picks up pollen. When the bee lands on a flower on another tree, it brushes against the pistil of the flower, leaving pollen grains on the sticky stigma. The pollen grains send tubes down through the styles to reach the ovary (pollination). Through the filament the sperm present 'in pollen can reach the ovules that are in the ovary. The fertilized ovules will become seeds.

The outer wall of the ovary develops into the fleshy white part of the apple. The inner wall of the ovary becomes the apple core around the seeds.

In summer, the apples grow bigger and eventually change color, and the tree produces new growth. In autumn, the apples ripen. About two weeks before the harvest, the apples' food supply from the tree is cut off and the apples become sweeter. Most apples are harvested by hand at around September and October.

Parts of the flowers from apple trees:• Sepals - five green, leaf like structures that make up a flower's calyx• Petals - the part of a flower that attracts insects by their color and scent• Stamens - the male reproductive part made up of an anther and filament• Anther - the part of the stamen that produces pollen• Filament - the stalk of the stamen• Pistil - female part of the flower, made up of a stigma, style, and an ovary• Stigma - the top of a flower's...